docs: def from_pickle(path: Union[str, BinaryIO], check_version: bool = True) -> BELGraph:
      """Read a graph from a pickle file.
  
      :param path: File or filename to read. Filenames ending in .gz or .bz2 will be uncompressed.
      :param bool check_version: Checks if the graph was produced by this version of PyBEL
      """
      graph = nx.read_gpickle(path)
  
      raise_for_not_bel(graph)
      if check_version:
          raise_for_old_graph(graph)
  
      return graph